feature-design SKILL.md skillA

feature-design from mattbrailsford/umbraco-devkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mattbrailsford/umbraco-devkit/feature-design@git:20261018.3565e47

Pins git:20261018.3565e47 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mattbrailsford/umbraco-devkit
Path
plugins/umbraco-devkit/skills/feature-design/SKILL.md
Versions recorded
5
Latest version
git:20261018.3565e47, committed Oct 18, 2026
First version recorded
Oct 16, 2026
Size
24,291 bytes
Repository stars
3
License
MIT

Decides how to build an Umbraco feature: extension points, data model, Management API surface and frontend components, written to ARCHITECTURE.md, SPEC.md and mockups. Use once feature-explore has defined the problem, or on its own to capture a mockup starter for a product screen.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# feature-design

> 🎯 **Design for change.** Every decision here is judged by one question: when this
> changes, how big is the diff? Pick the Umbraco extension points, seams, and data shapes
> that make the *next* change small and local — not the ones that are merely first to mind.

Decide *how* to build what `feature-explore` defined. Output: which parts of Umbraco you're
extending, the data model (if any), the Management API surface (if any), and the frontend
component shape (if any).

## Where this writes

The same per-feature plan folder `feature-explore` started. Owns two files, plus a `mockups/`
folder when the feature has a UI:

- **`ARCHITECTURE.md`** — the internal structural decisions: which extension point(s), the
  data model, key decisions with their rationale and the rejected alternative. This answers
  "how is it built, and why."
- **`SPEC.md`** — the externally observable contract: the Management API surface and the
  frontend components' expected behavior, in concrete, testable terms. This answers "what must
  it do," and is what `feature-plan` slices into stories — keep it testable, not vague.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mattbrailsford/umbraco-devkit/feature-design@sha256:c429c6df9f7987f2

The line at the top of this page pins the label git:20261018.3565e47, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_hfpa7pmjyilsmzcl.svg)](https://markdownregistry.com/a/art_hfpa7pmjyilsmzcl)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Oct 16, 2026 and Oct 18, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261018.3565e47 latest2026-10-18 3565e47 24,291 BA view · diff
git:20261018.1e555b02026-10-18 1e555b0 24,260 BA view · diff
git:20261017.5c556f02026-10-17 5c556f0 23,851 BA view · diff
git:20261017.62dceb42026-10-17 62dceb4 23,852 BA view · diff
git:20261016.adcfaac2026-10-16 adcfaac 23,860 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (24291 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

mattbrailsford/umbraco-devkit · 3 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_hfpa7pmjyilsmzcl
GET https://markdownregistry.com/api/v1/resolve?ref=mattbrailsford/umbraco-devkit/feature-design
GET https://markdownregistry.com/api/v1/blob/c429c6df9f7987f2faed5278051405d94de135b5b034782952d7cab74157bdbd

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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